The next release of the AWSOM Pixgallery plugin is now in development. The feature set is being finalized with a preliminary list of new additions being:

Automatic creation of cache file (custom folder still supported also)
Admin ability to delete cache folder contents to reset thumbnails
“Add Pixgallery” button added to post/page editor
Tagging field added in Manage Captions
Custom name field added in Manage Captions
minor bug fixes of Image display engine by Nathan M.
Folder identification system in thumbnail gallery view (to notate that image refers to a folder)
Folder captions now editable and placed in database

If you have any comments or feedback please post here or on the Harknell.com forums.